John feggetter blake



(No Model.)

J. P. BLAKE. 00m RELEASED SPIROMETER.

No. 405,455. Patented June 18, 1889.

ATTORIVKEY N PEIERs, Phnlo-Lilhugqpllor. Walhinglom D. C.

UNITED STATES PATENT OFFICE.

JOHN FEGGETTER BLAKE, OF NEW YQRK, N. Y.

CQlN-RELEASED SPIROMETER.

SPECIFICATION forming part of Letters Patent No. 405,455, dated June 18, 1889.

Application filed February 28, 1889. Serial No. 301,444. (No model.)

To all whom it may concern.-

Be it kn own that I, JOHN FEGGETTER BLAKE, a citizen of the United States, residing at New York, county of New York, State of New York, have invented new and useful Improvements in Coin-Operated Spirometers, of which the following is a specification.

This invention relates to a coin-operated spironieter; and it consists in certain details of construction, as set forth in the following specification and claims, and illustrated in the accompanying drawings, in which Figure 1 is a sectional elevation of a coinoperated device, the section being taken along line 00 as, Fig. 2. Fig. 2 is a section along line 1 y, Fig. 1. Fig. 3 is a detail side view of part of a coin-carrier. Fig. 4 is a detailside view of a coin-carrier. Fig. 5 is a rear view of part of a coin-carrier 011 a larger scale than Fig. 4. Fig. 6 is a plan View of part of a coincarrier. Fig. 7 is a section along line a .2, Fig. 1.

Similar-letters indicate corresponding parts.

In the drawings, the letter A indicates a case or support. The device shown in the drawings is a lung-tester or device for testing the capacity of the lungs. The air ejected from the lungs is led through the tube 13. A pressure-gage C may be applied to the tube to indicate the compression of the air. The air from the tube B enters the cylinder D and forces the piston E, with its rod F, in the direction of arrow 1. The rod F is hollow for the reception of the shaft G. The rod F has a cross-head H, adapted to travel along guides I, and the lug K engages the worm L on shaft G.

By means of the lug and worm connection the movements of the piston E rotate the shaft G. The piston E thus serves as an actuator for the shaft. The piston E, moving in the direction of arrow 1, rotates the shaftGin the direction of arrow 2. To the shaft G is secured an arm or disk M, havingacoin-receiving recess or slot N. The coin, being placed in the chute or guide P, passes along said guide and into the slot N; but said coin is prevented from falling out of the slot N by resting on the ledge or face Q.

The hollow shaft R sits over the shaft G, and said shaft R has secured to it an arm S,

the free end of which is bent or forked. When the shaft G is rotated in the direction of arrow 2, the arm M forces the projecting rim of the coin 0 against the arm S, so that the rotation of the shaft G and arm M is communicated to the shaft R through the arm S. coin, after having been carried off the ledge Q, is held from falling out of the slit N by the pressure between the coin O and arm S. The

arms M and S thus form a coin-carrier to interlock the shaft G and index U.

The rotation of the shaft R is communicated through the bevel-gears T to the index U, which index can be made to travel over a suitable dial, so as to enable the extent of actuation of the machine to be noted.

To the shaft R is secured a toothed disk or Wheel V. The pawl W swings about the pivot X, and in Fig. 1 said pawl is shown out of gear with the disk V by reason of the arm Y of said pawl being pressed by the lug or trip Z on the arm or disk M. NVhen the arm rotates in the direction of arrow 2, the lug Z releases the arm Y and the pawl W drops into engagement with the toothed disk V. V, being inclined, allow the pawl WV to ride over said teeth while the disk V rotates in the direction of arrow 2; but when starting to 1'0- tate in the reverse direction the pawl WV an rests-the motion of the disk V and shaft R. The disk V and shaft R thus remain stationary, while the arm M and shaft G return to the starting position, until the part M has reached the position shown in Fig. 1, when the lug Z strikes the arm Y and lifts the pawl W out of gear with the disk V. Thereupon the disk V and shaft R are free to return to the starting-point.

When the arm M starts on its return movement, the coin O is relieved from pressure against the arm S and said coin drops out of the slot N. The arm M is prevented in its return movement from going beyond the start ing-point by its shoulder or lug a, Fig. 5, engaging the stop b. The index U can be prevented from returning beyond the startingpoint by a stop 0. The piston can be pre vented by a stop d from passing too far along the cylinder.

When the piston E is freed from pressure, its weight carries it back to the starting-point, thus giving the shaft G a return rotation to the starting-point.

The coin, dropping out of the slot N, falls The The teeth of disk into-the receptacle 6, unless the coin-carrier M S should have traveled a considerable distance, in which case the coin drops into the receptacle f. The receptacle e is locked, while the receptacle f is open, so that a customer who has expended considerable energy will have the coin drop into the accessible receptacle f, and can thus regain possession of the com.

When the shaft R rotates in the direction of arrow 2, the weight g has its cord h wound on said shaft, and upon the shaft R being freed said weight restores the shaft R to its starting-point.

The device has been shown applied for testing lung capacity; but of course it may be applied otherwiseas, for example, to test grip capacities, pull capacities, and other energles.

WVith reference to the part M it is to be noted that said part is shown in the drawings in form of adisk. An arm secured to the shaft G will secure operation of the device as well as a disk; but a disk is preferable, since it prevents a customer being defrauded of his coin, since if a customershould drop a coin into the device before the slotN is at the startingpoint said coin is prevented by the disk M from falling into the receptacle 6, since said disk M supports the coin until the slotN is at the starting-point, when the coin passes into the slot N, and thus is in position to interlock the parts M S. By having the disk M placed so close to the chute P that a coin resting on the disk cannot pass entirely out of the chute until the slot N reaches the starting-point, and by having the disk M provided with a flange or groove 1' to steady the edge of the coin, the coin resting on the disk is steadied so as to be in proper position to pass into the slot N when said slot reaches the starting-point.

What I claim as new, and desire to secure by Letters Patent, is

1. The combination, with apiston E, a shaft rotated by said piston, and an index, of a rotary coin -carrier adapted to interlock the shaft and index, substantially as described.

2. The combination, with a piston E, ashaft rotated by said piston, and an index, of an arm or disk M, provided with a coin-receiving recess and secured to said shaft, and an arm S for engaging the rim of the coin and also secured to said shaft, substantially as described.

3. The combination, with a rotatable shaft and an index, of a coin-carrier adapted to interlock the shaft and index, and a detent adapted to hold the index stationary during the return movement of the shaft, substantially as described.

4. The combination, with a piston E, a shaft rotated by said piston, and an index, of a coincarrier adapted to interlock the shaft and index, a detent adapted to hold the indeX Stationary, and a trip Z for releasing the detent when the piston has returned to its startingpoint, substantially as described.

5. The combination of a piston, a shaft rotated by the piston, an index, a coin-carrier adapted to interlock said shaft and index, a closed receptacle e, and an accessible receiver f, said receptacle and receiver located to receive coins at different points in the movement of the carrier, substantially as described.

6. The combination, with a rotatable shaft and an index, of a coin-carrier adapted to interlock the shaft and index, said coin-carrier consisting of an arm S and disk M, said disk being constructed to support a coin until the disk is in its starting position, substantially as described.

7. The combination, with a rotatable shaft and an index, of a coin-carrier adapted to interlock the shaft and index, said coin-carrier consisting of an arm S and disk M, said disk being provided with a steadying flange or groove, substantially as described.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

JOHN FEGGETTER BLAKE.

Witnesses:

WILLIAM C. HAUEF, WILLIAM MILL R. 

